Hi,I want to get an estimation about power consumption by xpower tool.But xpower get an estimation with respect to a special FPGA optimisation.I want to get me an estimation with respect to sub-system modules because I want to evaluate the effect of each sub-system on the overall system.
How can I do this?
I can tell you have not read the users manual for the Xpower tool.
In a nutshell you cannot use Xpower until you have synthesized your design. Xpower will ask you for specific information that is provided in your output reports.
Another option -- The XPower Estimator spreadsheets are useful for getting a quick estimate of power consumption prior to synthesis, assuming you fill in the blanks with reasonably good guesses about your design. They run in Microsoft Excel. Maybe that will help you. https://www.xilinx.com/products/design_resources/power_central/index.htm